/**
 * @author caesar
 * @date 2025/6/30
 * @apiNote
 */
public class homework2_4 {
    public static void main(String[] args) {
        for (int i = 1; i <= 7; i++) {
            for (int j = 1; j <= 7; j++) {
                if (i == j || i == 8 - j) {
                    System.out.print("X");
                } else {
                    System.out.print("o");
                }
            }
            System.out.println();
        }
    }
}
